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i 5 Sheets- Sheet 1. W. SYDENHAM, F. WATKINSON 8v A. SYDENHANL PatentedJune 28', 1898.

DRIVINGGEARV FOR MOTOR CARS.

(No Model.)

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W. SYDENHAM, F. WATKINSON & A. SYDENHAM. DRIVING GEAR PoR MOTOR GARS.

No. 606,311. Patented June 28,1898.

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N0. 606,311. Patented June 2&8

(No Model.) 5 Sheets-Sheet' 4. W. SYDENHAM, F. WATKINSON 8a A. SYDENHAM.

DRIVING GEAR FOB, MoToR GARS. No. 60 6,31'1.

y Patented June.L 28, 189B.

(No Model.) 51SheetslShee1z` W. SYDENHAM, F. WIXUKIBISODI 8u A.SYDBNHAM.

DRIVING GEAR PoR MOTOR GARS. No. 606,311.

Patented-June 28,1898.

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VVILLAM SYDENHAM, FREDERICK VATKINSON, AND ARTHUR SYDENHAM,

` OFLONDON, ENGLAND.

DRIVING-GEAR FOR MOTOR-CARS.

SPECIFICATION forming part of Letters Patent No. 606,311, dated Junel28, 1898.

Application filed November 18, 1897. Serial No. 659,015. (No model.)

To @ZZ whom 7115 may con/cern:

Be it known that we, VILLIAM SYDENHAM, residing at Ann street, UnionSquare, Islington, FREDERICK VATKINS'ON, residing at Prah road, Finsb ury Park, both in the county of Middlesex, and ARTHUR SYDENHAM, resid!tor-Cars and other Vehicles, of which the following is a specification.

The object of this invention is to drive all the wheels of the vehicle,although their axes can be made to radiate to a point for steering. Forthis purpose the axle (which is driven in any convenient manner) isdivided into four parts. The two middle parts are connected together atone end by differential gear, (so that in turning the outer wheelrevolves faster than the inner one,) while their other ends are eachconnected to one of the outer parts of the axle by a universal joint.

Figure l is a vertical longitudinal section, partly in elevation, of theaxle and steeringgear; and Fig. 2 is a plan. Figs. 3 to 8 showmodifications.

These gures show three 0f the four parts of the axle-namely, a a' d2.The fourth part, which is not shown, is tothe right of the figures andis similar to a.

The parts a are free to turn in sleeves h and at their outer ends carrypins or cross-bars c, engaging with slots on the hubs c7 of the wheelsc7, so that the wheels turn with the axles. The inner ends of the shaftsca are connected by Hooke joints e to the outer ends of the shafts o',whose inner ends are connected by differential gear f. The shafts o.work in bearings g', fixed to the frame g of the machine. g2 is a fork,also fixed to the frame. At the top it carries a bearing g3 and at thebottom a stud g4.

The sleeves b have forks 7J at one end, carrying studs b2, working inthe bearings g3, and also bearings D3 to :receive the studs g4.

b5 are levers rigidly xedfto the studs b2 and connected by the rods 7Lto the plate 7L', which can be turned about a pivot 7b2 by the handwheel7a3.

' The arrangement above described is not suitable when it is desiredtoturn the wheels l through large angles, and in such cases the Hookejoint e may be replaced by beveled pinions, as shown in Fig. 3; but weprefer to adopt the arrangements shown at Figs. 4 to 10, Figs. 4C and 5being similar views to Figs. l and 2, Fig. 6 showing some of the partsseparately, and Figs. 7 and 8 by a plan and side elevation, of thecarriage. In this arrangement the Hooke joint is replaced by a specialform of universal joint, consisting of rods jointed together in the formof a parallelo gram each of the sides of which is made in two parts freet0 turn axially the one upon the other. Fig. 6 gives two views at rightangles to each other of each of the parts separated from each other.These parts are pin-jointed to each other at j 7 Z m. The method ofturning the wheels is also modiiied. The studs b2 have fixed to thempinions b, gearing with racks h4 on the rods 72, Whose other ends carryrollers h5, engaging with a cam-groove 72,7 on the plate 7L', which isprovided with teeth hs, gearing with a pinion 7L", fixed to the shaft ofthe hand-wheel h3. By this means the different angles through which thetwo wheels have to be turned can be very accurately adjusted.

What We claim is- 1. The combination of the four parts of the axle,differential gear connecting the two mid dle parts, parallelogramsconnecting the middle and outer parts, joints at the angles of theparallelograms and axial joints in their sides.

2.v The combination of the four parts of the axle, differential gearingconnecting the two middle parts, universal joints connecting the middleand outer parts, four sleeves forming bearings for the four parts of theaxle, vertical joints connecting the outer and middle sleeves, and meansfor turning the outer sleeves about the joints.

3. The combination of the four parts of' the axle, differential gearconnecting the two middle parts, parallelograms connecting the mid ldle' and outer parts, joints at the angles of the parallelograms, axialjoints in their sides, four sleeves forming bearings for the parts,

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vertical joints connecting the outer and middle sleeves and means forturning the outer sleeves about the joints.

4. The combination of the four parts of the axle, differential gearconneotin g the two iniddle parts, universal joints connecting themiddle and outer parts, four sleeves forming bearings Jfor the parts,vertical joints connecting the outer and middle sleeves, pinions fixedto the outer sleeves, racks gearing with the pinions, and a cam actuatedby the steering-gear traversing the racks.

5. The combination of the four parts of the axle, differential gearconnecting the two middie parts, parallelogranis connecting the mid-WILLIAM SYDENHAM. FREDERICK VATKINSON. ARTHUR SYDENHAM.

lVitnesses:

WILLIAM RoxBURY, FREDK. HARRIS.

